Optics: measuring and testing – Range or remote distance finding – With photodetection
Patent
1984-12-04
1987-07-07
Corbin, John K.
Optics: measuring and testing
Range or remote distance finding
With photodetection
356246, G02B 500
Patent
active
046782788
ABSTRACT:
A sight tube for ultraviolet monitoring of liquid and capable of handling industrial scale flow rates for example 40 gallons (180 liters) per minute in which the shape is especially designed to allow oppositely disposed windows, through which the ultraviolet light passes, to be relatively close together. The sight tube has an interior the central section of which has a flat sided portion adjacent and parallel to the windows, the flat sided portion being flanked by two side portions which are thicker than said flat sided portion, the tube having cylindrical end sections joined to the central section by intermediate sections which provide gradual transitions between the section shapes.
REFERENCES:
patent: 4088448 (1978-05-01), Lilja et al.
patent: 4221470 (1980-09-01), Weeks
patent: 4441365 (1984-04-01), Schulz et al.
patent: 4444498 (1984-04-01), Heinemann
Friesen Albert D.
Grassler Walter F.
Ben Loha
Corbin John K.
The Winnipeg Rh Institute Inc.
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